hiderfong
60 lines
2.2 KiB
JavaScript
60 lines
2.2 KiB
JavaScript
Object.defineProperties(exports, { __esModule: { value: true }, [Symbol.toStringTag]: { value: 'Module' } });
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const require_runtime = require('../../_virtual/_rolldown/runtime.js');
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const require_aria = require('../../constants/aria.js');
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const require_aria$1 = require('../../utils/dom/aria.js');
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const require_event = require('../../utils/dom/event.js');
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let vue = require("vue");
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//#region ../../packages/directives/trap-focus/index.ts
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const FOCUSABLE_CHILDREN = "_trap-focus-children";
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const TRAP_FOCUS_HANDLER = "_trap-focus-handler";
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const FOCUS_STACK = [];
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const FOCUS_HANDLER = (e) => {
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if (FOCUS_STACK.length === 0) return;
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const code = require_event.getEventCode(e);
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const focusableElement = FOCUS_STACK[FOCUS_STACK.length - 1][FOCUSABLE_CHILDREN];
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if (focusableElement.length > 0 && code === require_aria.EVENT_CODE.tab) {
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if (focusableElement.length === 1) {
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e.preventDefault();
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if (document.activeElement !== focusableElement[0]) focusableElement[0].focus();
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return;
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}
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const goingBackward = e.shiftKey;
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const isFirst = e.target === focusableElement[0];
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const isLast = e.target === focusableElement[focusableElement.length - 1];
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if (isFirst && goingBackward) {
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e.preventDefault();
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focusableElement[focusableElement.length - 1].focus();
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}
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if (isLast && !goingBackward) {
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e.preventDefault();
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focusableElement[0].focus();
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}
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if (process.env.NODE_ENV === "test") {
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const index = focusableElement.indexOf(e.target);
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if (index !== -1) focusableElement[goingBackward ? index - 1 : index + 1]?.focus();
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}
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}
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};
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const TrapFocus = {
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beforeMount(el) {
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el[FOCUSABLE_CHILDREN] = require_aria$1.obtainAllFocusableElements(el);
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FOCUS_STACK.push(el);
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if (FOCUS_STACK.length <= 1) document.addEventListener("keydown", FOCUS_HANDLER);
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},
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updated(el) {
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(0, vue.nextTick)(() => {
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el[FOCUSABLE_CHILDREN] = require_aria$1.obtainAllFocusableElements(el);
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});
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},
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unmounted() {
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FOCUS_STACK.shift();
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if (FOCUS_STACK.length === 0) document.removeEventListener("keydown", FOCUS_HANDLER);
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}
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};
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//#endregion
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exports.FOCUSABLE_CHILDREN = FOCUSABLE_CHILDREN;
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exports.TRAP_FOCUS_HANDLER = TRAP_FOCUS_HANDLER;
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exports.default = TrapFocus;
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//# sourceMappingURL=index.js.map
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